This app is about galaxy secrates.This app is very useful for to know about the galaxy and it secrates.A galaxy is a massive, gravitationally bound system consisting of stars, stellar remnants, an interstellar medium of gas and dust, and dark matter, an important but poorly understood component. The word galaxy is derived from the Greek galaxias literally “milky”, a reference to the Milky Way. Examples of galaxies range from dwarfs with as few as ten million (107) stars[3] to giants with a hundred trillion (1014) stars,[4] each orbiting their galaxy’s own center of mass.